Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262402 | Process for preparing pyrimidinetrione derivatives | Bernard Siegfried, Jindrich Vachta, Karel Valter | 1993-11-16 |
| 4611057 | Process for preparing pyrimidinetrione derivatives | Philippe Gold-Aubert, Diran Melkonian, Jindrich Vachta, Karel Valter, Bernard Siegfried | 1986-09-09 |